50646 has 16 divisors (see below), whose sum is σ = 105984. Its totient is φ = 16104.

The previous prime is 50627. The next prime is 50647. The reversal of 50646 is 64605.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50647) by changing a digit.

50646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46 + ... + 321.

It is an arithmetic number, because the mean of its divisors is an integer number (6624).

2⁵⁰⁶⁴⁶ is an apocalyptic number.

50646 is an abundant number, since it is smaller than the sum of its proper divisors (55338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52992).

50646 is a wasteful number, since it uses less digits than its factorization.

50646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 50646 is about 225.0466618282. The cubic root of 50646 is about 36.9982955144.

Subtracting from 50646 its sum of digits (21), we obtain a 4-th power (50625 = 15⁴).

It can be divided in two parts, 50 and 646, that added together give a palindrome (696).

The spelling of 50646 in words is "fifty thousand, six hundred forty-six".